| (19) |
 |
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(11) |
EP 0 713 143 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
25.06.1997 Bulletin 1997/26 |
| (43) |
Date of publication A2: |
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22.05.1996 Bulletin 1996/21 |
| (22) |
Date of filing: 10.11.1995 |
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| (51) |
International Patent Classification (IPC)6: G03F 7/022 |
|
| (84) |
Designated Contracting States: |
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DE GB |
| (30) |
Priority: |
18.11.1994 JP 285447/94
|
| (71) |
Applicant: FUJI PHOTO FILM CO., LTD. |
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Kanagawa (JP) |
|
| (72) |
Inventors: |
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- Nagashima, Akira,
c/o Fuji Photo Film Co., Ltd.
Haibara-gun,
Shizuoka (JP)
- Kawamura, Koichi,
c/o Fuji Photo Film Co., Ltd.
Haibara-gun,
Shizuoka (JP)
|
| (74) |
Representative: Grünecker, Kinkeldey,
Stockmair & Schwanhäusser
Anwaltssozietät |
|
Maximilianstrasse 58
80538 München
80538 München (DE) |
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| |
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| (54) |
Photosensitive planographic printing plate |
(57) Photosensitive planographic printing plates which have improved safety against a
white lamp, improved suitability for plate inspection to the developed printing plates,
and greater ease with which register marks can be visually observed, without any deteriorated
sensitivity, and which comprise a) an o-naphthoquinonediazide compound, b) an aqueous
alkali-soluble, water-insoluble polymer, c) a blue-colorant, and d) a colorant of
which the proportion of absorbance at wavelengths of 436 nm, 417 nm and 500 nm is
100 : 65 or less : 40 or less.